A signal multiplexing apparatus and method using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to generate a multiplexed signal by combining a core layer signal and an enhanced layer signal at different power levels; a power normalizer configured to reduce the power of the multiplexed signal to a power level corresponding to the core layer signal; a time interleaver configured to generate a time-interleaved signal by performing interleaving that is applied to both the core layer signal and the enhanced layer signal; and a frame builder configured to generate a broadcast signal frame using the time-interleaved signal and L1 signaling information.

Wireless communications are described. A wireless device may determine a first transmission power for a first signal and a second transmission power for a second signal. The wireless device may reduce signal transmission power of one or more of the first signal or the second signal, based on a calculated power value exceeding an allowable transmission power. The wireless device may reduce the signal transmission power during an overlap period or a non-overlap period, based on a duration of an overlap of the first signal with the second signal.

Methods, apparatuses, and computer-readable medium are provided for enabling DCI based power control for PUCCH. An example method includes receiving, from a network entity, a DCI comprising a group TPC message, the DCI indicating multiple TPCs including one or more TPCs associated with one or more secondary cells and a primary cell for the UE and one or more other UEs. The example method further includes identifying a TPC to be applied to a target secondary cell or a target primary cell from the one or more TPCs. The example method further includes transmitting, to the base station, a PUCCH on the target secondary cell or the target primary cell based on the identified TPC from the one or more TPCs.

Methods, systems, and devices for wireless communications are described. In one example, a user equipment (UE) may be configured to receive a control message scheduling a multicast transmission, and the UE may identify an open loop power control parameter for transmitting acknowledgment feedback responsive to the multicast transmission. The identification of the open loop power control parameter may be based on the transmission being multicast to a plurality of UEs, and in some cases a UE may identify an open loop power control parameter that is different than an open loop power control parameter associated with feedback responsive to unicast transmissions. In various examples, open loop power control parameters may correspond to respective feedback resources (e.g., according to a configuration for a set of open loop power control parameters), or to respective physical resource indicators (e.g., as signaled in downlink control information).

A wireless device transmits a first message comprising a preamble and a transport block. The wireless device receives, during a time window, a first downlink control information (DCI) scheduling a response to the first message. The first DCI indicates a first transmit power control (TPC) command value. A decoding failure of the response and an expiry of a timing alignment timer is determined. The wireless device receives, based on the determining and during the time window, a second DCI rescheduling the response. The second DCI indicates a second TPC command value. The wireless device selects, based on a decoding success of the response rescheduled by the second DCI, the second TPC command value as a transmit power adjustment value among the first TPC command value and the second TPC command value. The wireless device transmits a feedback using a transmit power determined based on the transmit power adjustment value.

A method of operating a wireless communication system is disclosed (FIG. 6). The method includes receiving a virtual cell identification (VCID) parameter (600) from a remote transmitter. A base sequence index (BSI) and a cyclic shift hopping (CSH) parameter (604,606) are determined in response to the VCID. A pseudo-random sequence is selected in response to the BSI and CSH (610,612). A reference signal is generated using the selected pseudo-random sequence (614).

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) scheduling transmission of a first one or more physical uplink control channel (PUCCH) communications on a first component carrier and a second one or more PUCCH communications on a second component carrier, wherein the DCI includes information identifying a first transmit power configuration for the first one or more PUCCH communications and a second transmit power configuration for the second one or more PUCCH communications. The UE may transmit the first one or more PUCCH communications in accordance with the first transmit power configuration and the second one or more PUCCH communications in accordance with the second transmit power configuration. Numerous other aspects are described.

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and an apparatus for a terminal controlling uplink power in a carrier aggregation-based wireless communication system, comprising the steps of: configuring a first cell and a second cell; transmitting a first PUCCH signal from subframe #n in the first cell; and transmitting a second PUCCH signal from subframe #n in the second cell, wherein when the sum of transmit power of the first PUCCH signal and transmit power of the second PUCCHJ signal exceeds a predetermined maximum transmit power configured to the terminal, the transmit power of the PUCCH signal having a lower priority from among the first UCCH signal and the second PUCCH signal is reduced or the transmission is dropped.

Techniques for wireless component monitoring are described herein. The techniques may include entering a low power mode to associate a radio frequency identification (RFID) component with a patient monitoring device within a first range. The techniques also include entering a high power mode wherein the patient monitoring device is to detect the RFID component within a second range of the patient monitoring device, wherein the second range is larger than the first range.

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for performing power scaling for PUCCH transmission at power limitation situation in a carrier aggregation system, the method comprising: configuring multiple Physical Uplink Control Channels (PUCCHs) for the UE; performing power scaling down for at least one first PUCCHs of the multiple PUCCHs if the UE does not have enough power to transmit multiple PUCCHs at the same time; transmitting the at least one first PUCCHs using a power determined by the power scaling down; and transmitting second PUCCHs except the at least one first PUCCHs which the power scaling down is performed, without any power scaling down.